Effect of input source energy and measurement of flexible pavement deflection using the SASW method

Research output: Contribution to journalArticle

Abstract

This paper presents the effect of input source energy on the results of spectral analysis of surface wave (SASW) evaluation of flexible pavements in terms of maximum and minimum wavelength. A series of surface wave tests, namely the SASW test, were done on asphalt pavement using four steel balls with different masses as sources. These sources were dropped from two different heights, 0.25 and 0.50 m. This test was also conducted with two different configurations, i.e. with the receivers positioned 0.15 and 0.30 m apart. This paper also presents the feasibility of using accelerometers to measure flexible pavement deflection. For this purpose, the process of integrating accelerometer time history is described. It is proved that a change in input source energy has some effect on the value of maximum and minimum wavelength. The result for numerical double integration is satisfactory and is congruent with the displacement obtained through finite element analysis.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalInternational Journal of Pavement Engineering
DOIs
Publication statusAccepted/In press - 10 Mar 2017

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Pavements
Surface waves
Spectrum analysis
Accelerometers
Wavelength
Asphalt pavements
Finite element method
Steel

Keywords

  • accelerometer
  • non-destructive test
  • numerical integration
  • road deflection
  • Spectral analysis of surface wave

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

Cite this

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title = "Effect of input source energy and measurement of flexible pavement deflection using the SASW method",
abstract = "This paper presents the effect of input source energy on the results of spectral analysis of surface wave (SASW) evaluation of flexible pavements in terms of maximum and minimum wavelength. A series of surface wave tests, namely the SASW test, were done on asphalt pavement using four steel balls with different masses as sources. These sources were dropped from two different heights, 0.25 and 0.50 m. This test was also conducted with two different configurations, i.e. with the receivers positioned 0.15 and 0.30 m apart. This paper also presents the feasibility of using accelerometers to measure flexible pavement deflection. For this purpose, the process of integrating accelerometer time history is described. It is proved that a change in input source energy has some effect on the value of maximum and minimum wavelength. The result for numerical double integration is satisfactory and is congruent with the displacement obtained through finite element analysis.",
keywords = "accelerometer, non-destructive test, numerical integration, road deflection, Spectral analysis of surface wave",
author = "Ismail, {Norfarah Nadia} and {Md Yusoff}, {Nur Izzi} and {Mohd Nayan}, {Khairul Anuar} and {Abd. Rahman}, Norinah and Rosyidi, {Sri Atmaja P} and Amiruddin Ismail",
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AU - Ismail, Norfarah Nadia

AU - Md Yusoff, Nur Izzi

AU - Mohd Nayan, Khairul Anuar

AU - Abd. Rahman, Norinah

AU - Rosyidi, Sri Atmaja P

AU - Ismail, Amiruddin

PY - 2017/3/10

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N2 - This paper presents the effect of input source energy on the results of spectral analysis of surface wave (SASW) evaluation of flexible pavements in terms of maximum and minimum wavelength. A series of surface wave tests, namely the SASW test, were done on asphalt pavement using four steel balls with different masses as sources. These sources were dropped from two different heights, 0.25 and 0.50 m. This test was also conducted with two different configurations, i.e. with the receivers positioned 0.15 and 0.30 m apart. This paper also presents the feasibility of using accelerometers to measure flexible pavement deflection. For this purpose, the process of integrating accelerometer time history is described. It is proved that a change in input source energy has some effect on the value of maximum and minimum wavelength. The result for numerical double integration is satisfactory and is congruent with the displacement obtained through finite element analysis.

AB - This paper presents the effect of input source energy on the results of spectral analysis of surface wave (SASW) evaluation of flexible pavements in terms of maximum and minimum wavelength. A series of surface wave tests, namely the SASW test, were done on asphalt pavement using four steel balls with different masses as sources. These sources were dropped from two different heights, 0.25 and 0.50 m. This test was also conducted with two different configurations, i.e. with the receivers positioned 0.15 and 0.30 m apart. This paper also presents the feasibility of using accelerometers to measure flexible pavement deflection. For this purpose, the process of integrating accelerometer time history is described. It is proved that a change in input source energy has some effect on the value of maximum and minimum wavelength. The result for numerical double integration is satisfactory and is congruent with the displacement obtained through finite element analysis.

KW - accelerometer

KW - non-destructive test

KW - numerical integration

KW - road deflection

KW - Spectral analysis of surface wave

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